//
//  aaaa.h
//  SignSecurityDemo
//
//  Created by zxl02 on 2020/11/6.
//  Copyright © 2020 CordovaDemo. All rights reserved.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@protocol aaaa <NSObject>
-(void)start:(NSString*)str;
-(void)stop;
@require
-(void)str;
@optional
-(void)strrr;
@end

NS_ASSUME_NONNULL_END
